The beavertail cactus is often confused with the prickly pear when viewed from a distance. However, the beavertail forms low spreading clumps which are gray to purple in color. Distinct spines are absent in most varieties but the areoles bear very small bristles in reddish tufts.
Note the shape of the cactus pad that gives this species its common name. Rose colored flowers are produced in the late spring and early summer. This cactus is often found from the lower elevations of the foothills to the higher elevations of the desert.